Crushing-machine.



E. J.l STBGKLB. CRUSHING MACHINE.

` APPLIUATION FILED MAY 31, 1911. Lm Patented 0011.121911.

MMM/ y E. J. STRG-KLB.

l CRUSHING MACHINE. APPLICATION PILD MAY 3l, 1911.v

lgm Patented 001.1131911.

2 SHEBTS-SHEET 2.

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EDWARD 'J'. S-TECKLE, 0F DIXON, ILLINOIS, ASSIGNOR'OF ONE-THIRD T0 CHARLES J'. RIEIIII'ILY, OF .SYRACUSE INDIANAy AND ONE-THIRD T0; WILLIAM E. WUERTH, 0F

nIxon; ILLINOIS.

accedas.

CBUSHINGr-MACHINE.

Speeicaton of Letters .Eatenia` i y 'Patented U01). 17,1911.

Application led May 31, 1911. Serial No. 630,332. v

To all 'whom it 'may concern: l

, Be it known that I, EDWARD J. S'rncxnn, a .citizen of the United States, lresiding at Dixon, in the county of Lee and State oi' Illinois, have invented a certain new and useful Improvement in Crushing-Machines,

of which the following is a specification.

My invention relates to improvements in pulverizing machinery and is illustrated dia grammatically in the accompanying drawings, wherein--` Figure 1 is an elevation view with the entire installation; Fig. 2 is a section through the pulverizing machine; Fig. 3', a section along the lineB-S of Fig. 2; Fig, t a section-along the line 1 -4 of Fig. 3; Fig. 5 a detail elevation of the hood; Fig. 6 a detail plan view of the hood.

Like parts are indicated-by like letters throughout the several figures.

The open base A which carries the bearings A1, A2, supports the annular ring or. frame A3 having the closedbottoInA and thel centrally located bearing A5 and containing the .annular crushing ring AG held inposition therein by the collarjA7 -froin 'which projects 4upwardly and inwardly the spider arm .frame A8 terminating in the bearing A9.. The shaft Bkupon which is mounted the pulley B1 and which is supported in tliebearing A1 and-rotates within .the bearingsl A2 A5 and AD is provided with the collar 4B2 which supports the cylinder B3 held against rotation about the-shaft B by the key B4.y rounds the bearing A5 supports the laterally extended annular disk B6 upon `which are mounted the crushing balls IB7 in opposition to the crushing ring A6. The frame B8 is mounted upon the cylinder B3 and carries the fans'B",B 10 in two groups, one'above the other and located each group above the' crushingring AG. The conicalhood C which is mounted upon the collar A7 incloses the spider arm frame A8 and is provided with the' upwardly extending cylindrical extension C1 having the perforated top C2 in which is located the fixed sleeve C3 carrying the vslidably mounted sleeve C4. The circular baille plate C5 which is mounted rigidly upon th'e shaft B is interposed be tween the sleeve C3 and the spider arm frame AS. The screw conveyer C is supported in one end in the conical hood C, at the other end on the spider arm frame As and dis- The cylinder B3 which surf charges by means of" the spout C7 downwardly against the ians B Bm and the crushing balls B7. The spiral conduit Ca which is disposed about the outer portion of the conical hood C and is of constantly increasing cross sectional area communicates with the interior of the hood by the inclined passage ways C vwhich discharge' downwardly toward the crushing zone. The conduit D leads from the sleeve 'C3 to' the fan' or blower D1 from which leads a discharge pipe D2 to the cyclone separator D3. A dis charge chute D* leads from the bottom of the separator to any suitable receptacle not. shown and the air conduit D5 leads from the center of the top of the separator to the` spiral conduit C8.

'It will be evident that while I have shown in my drawing an operative device still many changes might be made in size, shape-and arrangement of parts without departing The use and operation of my device are as follows The material to be crushed or pulverized is fed -to the machine. by the screw conveyer which discharges into the hood above the rotating fans. and beneath the rotating baffle plate, whence it. passes .down into the crushing ringwhere it isV pulverized by the rotating `balls which are held cent-riugally.v against the ring. The rotationofthe fans' 'sets up a suction and `'drives a current .of air through the mill in the direction indicatedby the arrows. This action of the fans or paddles'is aided by the blower fanwhich` discharges into the cyclone separatorns i-ndicated. The suction of the air picks up the loose particles from the-pulverlzing zoneand carries them forward about the baile plate through the discharge sleeve and into the 'cyclone separator through which the crushed particles are discharged rom the chute as indicated and from which the air returns to the pulverizer.

It will be evident that by controlling the 100 velocity of the current, only such particles as are of a certain predetermined size will be picked up by the air and therefore no particles will leave the mill until they have The baie 105 been reduced to the desired size. plate which rotates with the main shaft on the crushing machine is so arranged that anylargc particles which may be by chance caught up by the fans or even by the air current will strike the plate and be thrown l1li) out bycentrifugal forcev to Vthe outer part of the machine from whence Vthey will slide down back to the crushing zone. The slidvcreasing sizes of particles topass through,

ably mounted sleeve as indicated above the baille plate provides a further means for adjustingthe'size ot the particles by controlling the cross sectional area of the discharge aperture. under ordinary circumstances most of the adjustment as to size of the particles will be done by varying the rate of feed to the mill and by varying the amount of air passing through the separator and mill. rangement of the air duct or passage leading from the separator to the mill is suchthat the-velocity and? amount of air -fed to the mill at any point thereabout is substantially equal to that at any other point, this being done by decreasing the cross sectional areaof the air passageas lit encircles the mill. y

` It will be evident that by the arrange-,

ment shown I am no longer dependent upon the usual separating screen which has a tendency to wear outrand permit ever inl andat the same time has a tendency to become stopped upwhen moist or sticky mag terials are used. l

centrifugally operated balls traveling therey A3 may be called the.` crushing chamber, within which is the crushing zone and the vertically placed crushing ring with the on. Immediately above the crushing chamber is the stirring or separating case, in which is the agitation zone wherein by. any desired means, but as here shown, by the A rotating fans, the crushed material is tossed and violently agitated. Into this stirring case is discharged, preferably uniformly thereabout, a current or currents of air whlch are forced through the agitation Zone "and proceed onward carrying more or less of the crushed or pulverized material, but more or less separating the same in such agitation Zone. Above the stirring case is a further 'separating chamber, preferably up- `wardly enlarging and provided with a battle, soA that the heavier materials or those not suiiiciently ground, are permitted to drop from the currents'of air, while the air carrying the finely ground material passes'out of the adjustable opening at the top. The air .I claim:

may be introduced so as to pick up or agitate the ground material, and then such air introduction means may be a substitute for the fa-ns.

, ,1. In a crushing machine, the combination of a downwardly closed crushing chamber adapted to retain the material'in process ofbeing crushed,. and having a crushingl ring therein with centrifugally operated balls V'traveling in such ring, a stirring and separating case above the crushing cham- It will be evident. thatA The ar- 1 ber provided with means for violently agi* tating the crushed material above the crushing zone, and wth air inlets about such stirring case to force the air through theagitation zone therein, and a further separation` chamber above the agitation zone.

Q. In a. crushing machine, the combina- 'i tion of a downwardly closed crushing chamF ber adapted to retain the material in process of being crushed, and having a crushing ring therein with centrifugally operated balls traveling in such ring, a stirring and separating case above the crushing chamber provided with inclined rotating fans for violently agitating the 'crushed' material above the crushing zone, and with air inlets about such stirringA case to force the air through the agitation zone therein, and a further separation chamber above the agi-j tation zone.

3. In a crushing machine, the combina` tion of a downwardly closed crushing chami ber adapted to retain the material in process of being crushed,and having a crushing' ring therein with centrifugally operated balls traveling in such ring, a. stirring and separating case above the crushing chamber provided with means for violently agitating the crushed material above the crushing zone, and with air inlets about such stirring case to torce air in uniform and regularly distributedvquantities through the` agitation zone therein,- and a further separation chamber above the agitation zone.

4. Inv a crushing machine, the combination of a downwardly closed crushing chamber adapted to retain the material in process of being crushed, and having a crushing ringe therein with centrifugally koperated.

balls traveling in such ring, a stirring and separating case above the crushing chamber,

provided with'meansfor violently agitating the crushed material above the crushing` the crushed material above the crushing zone, and with air inlets about such stirring case to force air through the agitation zone therein, a further separation chamber upwardly enlarging above the agitation zone,

and a balile plate therein.

6, In a crushing machine, the combination ofa downwardly closed crushing chamber adapted to retainthe material in process of being crushed, and having a crushing ring therein with centrifugally operated balls traveling in such ring, a stirring and separating case above the crushing chamber, provided with means for violently agitating the crushed material above the crushing zone, and with air inlets aboutsuch stirring case to force air through the agitation zone therein, a further separation chamber above the agitation Zone, and an adjustable outlet from such-latter chamber.

7 In a crushing machine, the combination of a downwardly closed crushing chamber adapted to retain the material 1n process of being crushed, and having a crushing ring therein with centrifugally operated balls traveling in such ring, a stirring and separating case above the crushing chamber, provided Withmeans for violently agitating the crushed material above the crushing zone, and with air inlets about such stirring case to Jforce air through the agitation zone therein, a further separation chamber above vwith a vertical crushing ring therein,

the agitation zone, and a baie plate in such chamber and an adjustable outlet above the same.

8. In a crushing machine, the combination of a crushing chamber adapted to retain the material, in process of being crushed, balls centrifugally operated adapted to travel in the said ring, a .stirring and separating chamber above the crushing chamber, rotaryy agtators or stirrers in such chamber adapted to create a zone of agitation for such crushed or pulverized material, air inlets about the same to provide currents of air above the crushing zone but through the agitation zone, an upwardly enlarging further separation chamber, a baffle plate there-across, and an adjustable outlet there'- or above the battle plate.

EDWARD J. STECKLE. Witnesses:

FRANCIS W. PARKER, Sr., FRANCIS W. PARKER. 

